:root {
  color-scheme: light dark;
  --bg: #f7f8fa;
  --panel: #ffffff;
  --text: #17202a;
  --muted: #5f6b7a;
  --line: #d8dee6;
  --blue: #1f6feb;
  --green: #1f883d;
  --yellow: #9a6700;
  --red: #cf222e;
  --chip: #edf2f7;
  --shadow: 0 12px 32px rgba(15, 23, 42, 0.12);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111418;
    --panel: #1b2027;
    --text: #edf2f7;
    --muted: #a7b0bd;
    --line: #303844;
    --blue: #6ea8fe;
    --green: #64d284;
    --yellow: #e3b341;
    --red: #ff7b72;
    --chip: #252d37;
    --shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.55 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  overflow-x: hidden;
}
a { color: inherit; }
.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 22px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  backdrop-filter: blur(10px);
}
h1 { margin: 0; font-size: 20px; letter-spacing: 0; }
h2 { margin: 0 0 12px; font-size: 18px; letter-spacing: 0; }
h3 { margin: 0 0 8px; font-size: 15px; letter-spacing: 0; }
p { margin: 0; }
#meta { color: var(--muted); font-size: 12px; }
nav { display: flex; flex-wrap: wrap; gap: 8px; }
nav a, button, select, input {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--text);
  padding: 7px 10px;
  font: inherit;
}
nav a { text-decoration: none; }
nav a.active { border-color: var(--blue); color: var(--blue); }
button { cursor: pointer; }
main { padding: 18px 22px 40px; max-width: 1500px; margin: 0 auto; }
.freshness {
  padding: 10px 22px;
  border-bottom: 1px solid var(--line);
  font-weight: 700;
}
.freshness[hidden] { display: none; }
.freshness.yellow {
  background: color-mix(in srgb, var(--yellow) 20%, var(--panel));
  color: var(--yellow);
}
.freshness.red {
  background: color-mix(in srgb, var(--red) 18%, var(--panel));
  color: var(--red);
}
.summary {
  display: grid;
  grid-template-columns: repeat(5, minmax(120px, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}
.metric {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 8px;
  padding: 12px;
}
.metric strong { display: block; font-size: 24px; }
.metric span { color: var(--muted); }
.filters {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: 12px;
}
.card {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 8px;
  padding: 12px;
  min-width: 0;
}
.card.urgent { border-color: var(--red); box-shadow: inset 4px 0 0 var(--red); }
.card-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: start;
}
.card-title { font-weight: 700; word-break: break-word; }
.muted { color: var(--muted); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.chip {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border-radius: 999px;
  padding: 2px 8px;
  background: var(--chip);
  color: var(--text);
  white-space: normal;
}
.chip.red { background: color-mix(in srgb, var(--red) 16%, var(--panel)); color: var(--red); }
.chip.yellow { background: color-mix(in srgb, var(--yellow) 18%, var(--panel)); color: var(--yellow); }
.chip.green { background: color-mix(in srgb, var(--green) 16%, var(--panel)); color: var(--green); }
.bar { height: 8px; border-radius: 999px; background: var(--chip); overflow: hidden; margin: 8px 0; }
.bar > i { display: block; height: 100%; background: var(--blue); }
.stack { display: flex; height: 8px; border-radius: 999px; overflow: hidden; background: var(--chip); margin-top: 8px; }
.stack i { display: block; }
.green-bg { background: var(--green); }
.yellow-bg { background: var(--yellow); }
.red-bg { background: var(--red); }
.blue-bg { background: var(--blue); }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); }
table { width: 100%; border-collapse: collapse; min-width: 900px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { position: sticky; top: 0; background: var(--panel); z-index: 1; }
.kanban { display: grid; grid-template-columns: repeat(9, minmax(240px, 1fr)); gap: 10px; overflow-x: auto; padding-bottom: 8px; }
.lane { background: color-mix(in srgb, var(--panel) 80%, var(--bg)); border: 1px solid var(--line); border-radius: 8px; padding: 8px; min-height: 420px; }
.lane h3 { position: sticky; top: 75px; background: inherit; z-index: 1; padding-bottom: 6px; }
.dots { display: flex; gap: 4px; margin-top: 8px; }
.dot { width: 9px; height: 9px; border: 1px solid var(--muted); border-radius: 50%; flex: 0 0 auto; }
.dot.done { background: var(--muted); }
.dot.current { background: var(--blue); border-color: var(--blue); }
.gantt { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); padding: 12px; }
.gantt-row { display: grid; grid-template-columns: 260px 900px; gap: 10px; min-height: 34px; align-items: center; }
.gantt-track { position: relative; height: 22px; background: var(--chip); border-radius: 6px; }
.gantt-bar { position: absolute; top: 3px; height: 16px; border-radius: 5px; background: var(--blue); min-width: 8px; }
.gantt-bar.overdue { background: repeating-linear-gradient(45deg, var(--red), var(--red) 5px, transparent 5px, transparent 10px); border: 1px solid var(--red); }
.drawer {
  position: fixed;
  right: 0;
  top: 0;
  width: min(760px, 100vw);
  height: 100vh;
  padding: 18px;
  background: var(--panel);
  box-shadow: var(--shadow);
  transform: translateX(105%);
  transition: transform 0.18s ease;
  z-index: 20;
  overflow: auto;
}
.drawer.open { transform: translateX(0); }
.drawer-header { display: flex; justify-content: space-between; gap: 12px; align-items: start; margin-bottom: 12px; }
.timeline { border-left: 2px solid var(--line); padding-left: 12px; }
.event { margin: 0 0 12px; padding-bottom: 10px; border-bottom: 1px solid var(--line); }
.event time { color: var(--muted); font-size: 12px; }
.modal {
  position: fixed;
  inset: 0;
  z-index: 25;
  display: none;
  background: rgba(0,0,0,.45);
  padding: 4vh 4vw;
}
.modal.open { display: block; }
.modal-body {
  max-width: 980px;
  max-height: 92vh;
  overflow: auto;
  margin: 0 auto;
  background: var(--panel);
  border-radius: 8px;
  padding: 18px;
}
.markdown table { min-width: 0; }
.markdown pre { overflow: auto; padding: 10px; background: var(--chip); border-radius: 6px; }
.markdown code { background: var(--chip); padding: 1px 4px; border-radius: 4px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.score { height: 8px; width: 110px; background: var(--chip); border-radius: 999px; overflow: hidden; }
.score i { display: block; height: 100%; background: var(--blue); }

@media (max-width: 860px) {
  .topbar { align-items: flex-start; flex-direction: column; }
  main { padding: 14px; }
  .summary { grid-template-columns: repeat(2, minmax(120px, 1fr)); }
  .split { grid-template-columns: 1fr; }
  .gantt-row { grid-template-columns: 180px 720px; }
}